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  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
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<script>
  "use strict"; {
    let test_table = (target) => {
      console.log(target);

    };

    @test_table class aa {
      constructor() {
        this.age = 19;
      };
      sayhai() {
        console.log(this.age);
      };
    };
    let i = new aa();
    i.sayhai();
  };
</script>

</html>